                           NVETH
                   (c) 2007-2010 by nickk
             Modified and maintained by Mensys BV
             ____________________________________


This is a driver for NVIDIA family integrated LAN adapters. It is based
on the linux forcedeth driver and is supposed to support the same scope
of adapters.

The installation is very simple - just unpack this archive into your
IBMCOM\MACS directory and, mpts.exe and set up driver as any other network
driver. Then reboot.


Switches
________

There are several protocol.ini switches you can tune the driver work:

MODE - the speed to work on, see nveth.nif for details

OPTIMIZE - there are two modes of driver work - with throughput optimization
  and without, which results in different set of interrupts to enable.
  This modes came from forcedeth linux sources and you can study the sources
  for more info. I do not have the hardware to test the driver,
  so its you to try which setting suits best for you.

TIMER - nvidia adapters have special interrupt driven by its own internal timer.
  This switch enables or disables the use of this interrupt.
  Switching off the timer will reduce the number of interrupts generating by
  the driver thus lowering system load, but it also could increase the latency
  in processing the rx/tx queues. Its up to you to find out whats is the best.

LINK_TIMER - if set to "YES", driver periodically queries HW chip for the
  actual link speed and resetup the chip according to it.

RXCHAIN - the os/2 ndis drivers have two methods to pass received data to the
  protocol drivers (tcpip and others) - receive chain and receive lookahead.
  The first one should be better. This option was introduced for testing
  purposes, now driver seems to work fine in both ways, so you can safely
  leave the switch intact.


Bugs
____

Open a ticket at: http://svn.ecomstation.nl/nveth

Dont forget to include into your bugreports the model of your mainboad, model
of your phy chip, pci.exe output. If it traps, please, include trap screen.
If you familiar with debug kernels, include also db ds:0 ldf4 and other magic
output you feel will be useful.


Licence
_______

Its GPL, see LICENSE


Source Code
___________

The source code is available at: http://svn.ecomstation.nl/nveth


Thanks
______

Thanks to Nickk for creating this driver. Thanks to Ruediger Ihle for RM code,
explanations and testing. Thanks to all those brave guys who tested it.


Changelog
_________

0.0.1
  Initial release, full of bugs.

0.0.2
  nveth.sys renamed to nveth.os2.
  Fixed bug with nforce1 adapter recognition.
  Compatibility fix for acpi's internal oemhlp$ driver.
  Added RM support.

0.0.3
  Added support for promiscous mode.

0.0.4
  Added extended description for switches in readme.
  Fixed trap in OS2KRNL due to accident block during interrupt processing.

0.0.5
  ? Untested fix to load multiple driver instances for several nvidia NIC's on same machine.
  Unfortunatelly, the only tester with dual nvidia nic has his MB broken
  (not by this driver, by screwdriver, so dont worry ;)). So i have no
  hardware to test it on, but i hope, you have it! Please, test and report.

0.0.6
  Added support for newer NVIDIA chipsets (MCP73, MCP77, MCP79, MCP89).
  Added initialization for some Realtek & Vitesse PHYs.

0.0.7
  When loading several drivers, the second driver instance name starts from
  NVETH2$ instead of NVETH1$.

0.1.0
  First Mensys supported version. Changed ring setup. Minor interrupt handler changes.

0.1.1
  Added APM support

0.1.2
  Fixed errors in link speed setup.
  Fixed reentrancy problem and block during interrupt in transmit.
